Create a clean base directory for Bazel tools
Create a clean base directory for Bazel tools

Suggested on https://github.com/google/bazel/issues/103#issuecomment-91290723,
this way the workspace on the package path doesn't include any (unwanted) build
artifacts.

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MOS_MIGRATED_REVID=90733730

juhalindfors/bazel-patches,xindaya/bazel,anupcshan/bazel,manashmndl/bazel,whuwxl/bazel,rzagabe/bazel,nkhuyu/bazel,ruo91/bazel,JackSullivan/bazel,dslomov/bazel-windows,sicipio/bazel,katre/bazel,mbrukman/bazel,ruo91/bazel,aehlig/bazel,abergmeier-dsfishlabs/bazel,d/bazel,hhclam/bazel,LuminateWireless/bazel,kidaa/bazel,cushon/bazel,kchodorow/bazel-1,sicipio/bazel,dhootha/bazel,cushon/bazel,ButterflyNetwork/bazel,Topher-the-Geek/bazel,ButterflyNetwork/bazel,rhuss/bazel,rhuss/bazel,LuminateWireless/bazel,ruo91/bazel,spxtr/bazel,UrbanCompass/bazel,vt09/bazel,kamalmarhubi/bazel,kchodorow/bazel-1,LuminateWireless/bazel,dslomov/bazel,zhexuany/bazel,dslomov/bazel-windows,joshua0pang/bazel,dhootha/bazel,Asana/bazel,kchodorow/bazel-1,murugamsm/bazel,bitemyapp/bazel,hermione521/bazel,murugamsm/bazel,safarmer/bazel,rzagabe/bazel,asarazan/bazel,UrbanCompass/bazel,murugamsm/bazel,akira-baruah/bazel,Ansahmadiba/bazel,safarmer/bazel,charlieaustin/bazel,iamthearm/bazel,mrdomino/bazel,mikelalcon/bazel,anupcshan/bazel,kchodorow/bazel,joshua0pang/bazel,snnn/bazel,davidzchen/bazel,twitter-forks/bazel,ButterflyNetwork/bazel,hhclam/bazel,whuwxl/bazel,kamalmarhubi/bazel,joshua0pang/bazel,meteorcloudy/bazel,cushon/bazel,vt09/bazel,spxtr/bazel,asarazan/bazel,iamthearm/bazel,JackSullivan/bazel,ulfjack/bazel,anupcshan/bazel,Ansahmadiba/bazel,meteorcloudy/bazel,murugamsm/bazel,mikelikespie/bazel,hermione521/bazel,dropbox/bazel,hhclam/bazel,twitter-forks/bazel,UrbanCompass/bazel,kidaa/bazel,gavares/bazel,katre/bazel,ulfjack/bazel,vt09/bazel,rohitsaboo/bazel,kamalmarhubi/bazel,twitter-forks/bazel,iamthearm/bazel,damienmg/bazel,Asana/bazel,bitemyapp/bazel,mrdomino/bazel,safarmer/bazel,gavares/bazel,rzagabe/bazel,abergmeier-dsfishlabs/bazel,meteorcloudy/bazel,Topher-the-Geek/bazel,dhootha/bazel,rzagabe/bazel,bitemyapp/bazel,aehlig/bazel,ulfjack/bazel,spxtr/bazel,rohitsaboo/bazel,werkt/bazel,gavares/bazel,spxtr/bazel,murugamsm/bazel,akira-baruah/bazel,kamalmarhubi/bazel,kidaa/bazel,Ansahmadiba/bazel,juhalindfors/bazel-patches,bitemyapp/bazel,kchodorow/bazel,dropbox/bazel,manashmndl/bazel,Krasnyanskiy/bazel,Digas29/bazel,davidzchen/bazel,whuwxl/bazel,perezd/bazel,variac/bazel,kchodorow/bazel,zhexuany/bazel,dropbox/bazel,Krasnyanskiy/bazel,twitter-forks/bazel,Topher-the-Geek/bazel,vt09/bazel,sicipio/bazel,perezd/bazel,mbrukman/bazel,manashmndl/bazel,mbrukman/bazel,zhexuany/bazel,sicipio/bazel,manashmndl/bazel,damienmg/bazel,davidzchen/bazel,zhexuany/bazel,akira-baruah/bazel,werkt/bazel,ulfjack/bazel,damienmg/bazel,rhuss/bazel,damienmg/bazel,snnn/bazel,Topher-the-Geek/bazel,JackSullivan/bazel,manashmndl/bazel,JackSullivan/bazel,kchodorow/bazel-1,charlieaustin/bazel,wakashige/bazel,snnn/bazel,abergmeier-dsfishlabs/bazel,vt09/bazel,Topher-the-Geek/bazel,UrbanCompass/bazel,manashmndl/bazel,aehlig/bazel,charlieaustin/bazel,ruo91/bazel,ButterflyNetwork/bazel,rhuss/bazel,aehlig/bazel,dslomov/bazel-windows,cushon/bazel,JackSullivan/bazel,charlieaustin/bazel,mikelalcon/bazel,gavares/bazel,akira-baruah/bazel,variac/bazel,variac/bazel,twitter-forks/bazel,rzagabe/bazel,kidaa/bazel,safarmer/bazel,asarazan/bazel,dslomov/bazel,perezd/bazel,whuwxl/bazel,perezd/bazel,rohitsaboo/bazel,dslomov/bazel,juhalindfors/bazel-patches,Topher-the-Geek/bazel,wakashige/bazel,UrbanCompass/bazel,bazelbuild/bazel,joshua0pang/bazel,dhootha/bazel,rohitsaboo/bazel,gavares/bazel,bazelbuild/bazel,rhuss/bazel,dropbox/bazel,davidzchen/bazel,hhclam/bazel,sicipio/bazel,zhexuany/bazel,katre/bazel,kidaa/bazel,zhexuany/bazel,variac/bazel,xindaya/bazel,perezd/bazel,davidzchen/bazel,asarazan/bazel,werkt/bazel,xindaya/bazel,abergmeier-dsfishlabs/bazel,LuminateWireless/bazel,anupcshan/bazel,murugamsm/bazel,Topher-the-Geek/bazel,hermione521/bazel,dhootha/bazel,rzagabe/bazel,Asana/bazel,rhuss/bazel,juhalindfors/bazel-patches,davidzchen/bazel,kidaa/bazel,sicipio/bazel,dinowernli/bazel,nkhuyu/bazel,dinowernli/bazel,Krasnyanskiy/bazel,Digas29/bazel,mikelalcon/bazel,kchodorow/bazel-1,vt09/bazel,werkt/bazel,iamthearm/bazel,dinowernli/bazel,rzagabe/bazel,rzagabe/bazel,Asana/bazel,LuminateWireless/bazel,akira-baruah/bazel,dslomov/bazel,dhootha/bazel,dhootha/bazel,ruo91/bazel,xindaya/bazel,hermione521/bazel,joshua0pang/bazel,juhalindfors/bazel-patches,mikelalcon/bazel,variac/bazel,wakashige/bazel,mikelikespie/bazel,variac/bazel,cushon/bazel,aehlig/bazel,meteorcloudy/bazel,d/bazel,safarmer/bazel,akira-baruah/bazel,damienmg/bazel,gavares/bazel,wakashige/bazel,vt09/bazel,bazelbuild/bazel,dslomov/bazel,aehlig/bazel,mikelikespie/bazel,mikelalcon/bazel,asarazan/bazel,gavares/bazel,spxtr/bazel,dslomov/bazel,Asana/bazel,Digas29/bazel,JackSullivan/bazel,mrdomino/bazel,xindaya/bazel,hhclam/bazel,Krasnyanskiy/bazel,d/bazel,kidaa/bazel,nkhuyu/bazel,juhalindfors/bazel-patches,manashmndl/bazel,bitemyapp/bazel,joshua0pang/bazel,Topher-the-Geek/bazel,snnn/bazel,ulfjack/bazel,kchodorow/bazel,twitter-forks/bazel,perezd/bazel,aehlig/bazel,whuwxl/bazel,hermione521/bazel,kidaa/bazel,mrdomino/bazel,hhclam/bazel,twitter-forks/bazel,juhalindfors/bazel-patches,nkhuyu/bazel,d/bazel,mbrukman/bazel,iamthearm/bazel,variac/bazel,anupcshan/bazel,wakashige/bazel,mbrukman/bazel,mikelikespie/bazel,charlieaustin/bazel,anupcshan/bazel,kchodorow/bazel-1,dslomov/bazel-windows,dslomov/bazel-windows,UrbanCompass/bazel,Ansahmadiba/bazel,Krasnyanskiy/bazel,bazelbuild/bazel,LuminateWireless/bazel,asarazan/bazel,charlieaustin/bazel,kchodorow/bazel,dropbox/bazel,snnn/bazel,damienmg/bazel,meteorcloudy/bazel,kamalmarhubi/bazel,nkhuyu/bazel,Krasnyanskiy/bazel,Ansahmadiba/bazel,ruo91/bazel,d/bazel,gavares/bazel,Asana/bazel,Digas29/bazel,mikelikespie/bazel,katre/bazel,asarazan/bazel,Krasnyanskiy/bazel,cushon/bazel,wakashige/bazel,kchodorow/bazel,Krasnyanskiy/bazel,nkhuyu/bazel,ruo91/bazel,spxtr/bazel,bitemyapp/bazel,d/bazel,charlieaustin/bazel,bitemyapp/bazel,werkt/bazel,rhuss/bazel,Asana/bazel,Digas29/bazel,dinowernli/bazel,xindaya/bazel,bazelbuild/bazel,perezd/bazel,ulfjack/bazel,abergmeier-dsfishlabs/bazel,wakashige/bazel,dslomov/bazel,JackSullivan/bazel,mikelikespie/bazel,iamthearm/bazel,abergmeier-dsfishlabs/bazel,meteorcloudy/bazel,nkhuyu/bazel,mikelalcon/bazel,ulfjack/bazel,snnn/bazel,spxtr/bazel,Digas29/bazel,ButterflyNetwork/bazel,Ansahmadiba/bazel,meteorcloudy/bazel,dslomov/bazel-windows,mrdomino/bazel,safarmer/bazel,katre/bazel,rohitsaboo/bazel,bazelbuild/bazel,sicipio/bazel,dinowernli/bazel,werkt/bazel,kamalmarhubi/bazel,dinowernli/bazel,d/bazel,dropbox/bazel,kchodorow/bazel,bitemyapp/bazel,whuwxl/bazel,rohitsaboo/bazel,murugamsm/bazel,katre/bazel,davidzchen/bazel,damienmg/bazel,mrdomino/bazel,snnn/bazel,ButterflyNetwork/bazel,mbrukman/bazel,xindaya/bazel,joshua0pang/bazel,hermione521/bazel,Ansahmadiba/bazel